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On-site / tonnage contracts

Business Model & Unit Economics · Contracting & revenue model

What it is

An industrial gas supplier builds an air separation unit inside or adjacent to a customer's plant - typically a steel mill, refinery or fertiliser unit - and supplies oxygen, nitrogen or argon by pipeline under a long-term contract of 15-20 years

The supplier owns the plant; the customer commits the volume

Impact on industries

  • Annuity economics with exceptional visibility - contracts run for decades with inflation and power-cost pass-through built in
  • Physical proximity makes the relationship effectively permanent, since a competitor would have to build a new plant to displace the incumbent
  • Counterparty risk concentrates over a very long horizon - a customer's plant closure strands an asset with no alternative use
  • Power is the dominant operating cost and is passed through, so the supplier's competitiveness depends on the customer's tariff rather than its own efficiency

Industries affected